Assuming a good twin scroll turbo being available, I would do the same thing!

Another thought.

We spend a fair amount of effort on the primary tube collector. Seem to not be to concerned with the collector into the turbo, and almost ignore the collector that splits exhaust to feed the WG's! Seems that on some turbo installs that run smaller turbine to compressor ratios, the WG circuit in some cases might be approaching the volume flow of the turbo.